Car-truck.



S. S. KNIGHT.

GAR TRUCK. APPLIGATIQN'FILBD FEB.23, 1911.

v Patented July 11,1911,

2 SHEETSSHEET l.

T MH T6 .mm V WK S. m W. ,M H l ad a MTA/5555s KNIGHT.

CAR TRUCK. APPLIOATION FILED mlms 1911.

Patented July 11 2 SHEETS-SHEET 2.

mman/TOR ufff/www5 r. m m@ .Y UNITED-STATES PATENT OFFICE. i

snnnwoon s. KNIGHroF sr.' LoUIs, ivrIssoU-RI, AssIGNonrosoULLIN-GALLAGHEB. f

InoN & STEEL ooivirANmyor sr. I.oUIs` MISSOURI, a coRPoRArIoN orMissouri; v.

To all whom' 'it may concern: y

'20 1 of Fig.' 1.

My invention relates generally to car.

f Be it known that I, SHEizwoon S. KNIGHT,

a citizen 'of the United States, residing ,at

StfLouis, Missouri, have invented a certain new anduseful Improvement inCar-Trucks, of which the following is a' full, clear, and exactdescription, such as will enable others skilled in the art toV whichitappertains to make and use t-he same, reference being had to' the`accompanying drawings,. forming part of this specification, in which-.

`Figure 1 'isa top planview of a six-wheel car' truck fof my improvedconstruction. Fig. 2 isa side elevation of thev truck. Fig.

3 is a vert-ical longitudinal section through 'l theI ceiiter of4thetijuck and taken 4approximately onthe linei33 of Fig. 1.` Fig. 4 isan. enlarged transverse. sectiongtaken von the.A

line 4-4of Fig.- 1. Fig. -5 is a vertical section taken approximatelyon; the line-5 6 t-riicks-of the six-,wheeled type such .as are nowfin'vgeneraluse :on passenger cars, 'and the principal obiects.l of my--invention are to provide a car truck of comparatively simple iconstruction coml'iining.E minimum weight With maximuinstrengtht andrigidity, andto provide a single- XLorH-shaped castingi in. which thebolster and. upper springbeams are combined,-=the .ends of which castingextendbeneath* the side rails of the truck frame, and-there bear uponthe .elliptic springs carried by the spring planks, and which latter areswingingly supported from the truck frame.

Further'objects of-'my invention are to mount arch bars `on ythe outer`ends of the X or H-shaped'casting, the central portions of which archbars receive the side bearings, to form chafing plates on `the speciallyformed casting, and the transoms of the truck frame, and to arrange onthe center of the specially formed casting, a detachable center bearingplate.

To lthe above purposes 'my invention consists in' certain novel featuresof construction and arrangement of parts hereinafter more fullydescribed and claimed.

In my improved construction the truck framecomprises a pair of sidemembers 1, en cl rails 2 and transoms 3 all of which parts arepreferably cast integral and of channel-shape in cross section, althoughit will be readily understood that the various l CAR-TRUCK.

Specification of Letters Patent.'

. parts-.of the frame so constructed can be box-shaped, or of I-beamshape in cross sec..` tion. y

Formed integral with or rigidly xed to the transoms 3 adjacent the side,members 1 are depending lugs 4 and' formed integralz Patented July`11,1911.j Application led February, 1911; Serial Nc..610,350.

with the side members 1, 'inside the transoms= 3 are inwardly anddownwardly 'projectingbrackets 5, the lower ends of which are inhorizontal alinement with the lugs 4. Piv- 'otally mounted in anysuitable manner upon the lugs 4 and 5' are links or hanger bars 6, andsupported upon rods 7 passing through the lower ends of thecorresponding pairs of links 6 ,are the ends of spring planks 8. A

9 designates the H or X-shaped casting, which performs the function ofthe truck asf bolster, and the spring beams, said casting being composedof four arms 9a of I-beam shape 'v in cross section, the inner ends 'of"which arms are united to form a centrally arranged body 10, Boltedv orriveted on top lof this centrally arranged body is-a center.

bearing plate 1 1 perforated and adapted to `L receive the king pin. Theouter portions of.

the arms 9a are curved downward and .oc-1t,

cupy positions between the transoms and the' brackets 5 and the ends ofsaid arms extend.

beneath the side members '1 of the trucks 8 frame. Bolted to said ends"outside the side."

members l are the ends of arch bars 12', their.y

central portions of"v which are adapted to 're-v ceive the` sidebearings.

Formed integral with lthe outer` faces -of the end portions ofthe arms9a are chafingl engage against the 4faces of corresponding .chafingplates 1i, formed integral with the` inner faces" of the transomy3.

15 designates elliptic springs resting upon*- 'sf ythe ends of thespring planks 8, andthef under sides of the end portions'of` thea-rinsfgplates 13, which are adapted to frictionally minimum amount ofmaterial i's used, there! by effecting a considerable saving inmanufacture.

. of whichl- Xshaped bolster-extend beneath tho side members' of'th'eftruck and arch bars'connecti'ng theends of, said arms outside the sidemembers of the truck trame.

In car truck the combination wlth 'the truckframe and spring planks ofan X-shaped casting, the ends'of the arms of which extend beneath theside members of the truck trame over the ends of the spring planks,springs interposed-between theends of the arms of' said casting and' thespring planks, and archfbars connecting the ends of said arms outsidethe side members vof thetruck frame. Y

In a car truck of the class described, a

truck frame, springllplanks mounted to swing thereon, a castingcomprising four arms united at the center of the truck frame, the endsof which arms are yieldingly supported upon the ends of the springplanksl .and arch bars connect-ing the ends of the arms outside the sidemembers of the truck frame..

4, ln a car truck of the class described,

a truck frame, springplanks mounted to, swing thereon, a castingcomprlsmg four arms united at the center of the truck frame, the ends ofwhich arms are yieldingly sup-` ported upon the ends of the springplanks, which arms `are of l'beam shape in cross section and arch barsconnecting the ends ofy said arms outside the side members of the truckframe. l

5.` In a car truck of the class described, a truck frame, spring planksmounted to swing thereon,an X-shaped casting, the ends of the armsof'which extend beneath the side members Vof the truck frame. and aretruck othe class described,

yieldingl'y supported upon the spring planks, arch bars Connecting theends of the arms of the VX-shaped casting outside the truck frame,'-fanda center bearing plate "iixedto the centerof the X-shaped casting.

' 6. Ina car truck, a truck frame,-transoms forming apart of saidframe,jbrack ets on the side members ofthe framesadjacent the transoms,spring 'planks mounted. toV swing "from, the tran'soinsand thebrackets,` an

X-shape'd casting, the ends of the arms ofv which extend'between thetransoms and the brackets, and springs interposed between the l ends ofsaid arms and the spring planks.V 7. In-.a car truck, a truck frame,transoms formingaparto' said frame, brackets on the side members of theframes adjacent the transoms,l spring planks mounted 4to. swingfrorn-the transoms'and the brackets, anv

X-shaped4 casting, the ends of the arms of brackets, springs interposedbetween vthe frame.

8." In: a "car'truck of the class; described,

a 'combined bolster-and spring beam member comprising an X-shapedcasting yieldvwhich extend between the transoms and the" ends of saidarmsand the spring planks, and arch bars connecting the ends of saidarms outside the side'members of the truckl ingly` mounted within thetruck frame, and

aA center Ybearing plate ons'aid X-shaped casting.

9. 1n a car truck, a. truck frame, transf soms forming a part of saidframe, brackets on the side members of the frames adjacent thetransom's, spring planks mounted to swing fromthe transoms and thebrackets, an X-sha'ped casting, the ends of the arms of which extendbetween the transoms and the brackets, springs interposed between theends of said4 arms and the spring planks,

arch bars connecting the ends of said arms outside the side members ofthe truck frame, and the arms of which X-shaped cast-ing are of I-beamshape in cross section'.

In testimony' whereof I .hereunto aix my signature in the presence oftWo Witnesses, this 18th day of February, 1911.

j sHERWooD s. KNIGHT.

' lVitnesses:

M. P. SMITH, B. S. REID.

